Photoluminescence and waveguiding in sputtered films of Er-doped chalcogenide glasses

Autor: Caroline Vigreux, Jochen Fick, Annie Pradel, Adam Fuchs, Viorel Balan
Rok vydání: 2004
Předmět:
Zdroj: SPIE Proceedings.
ISSN: 0277-786X
DOI: 10.1117/12.545740
Popis: The spectral properties of Er 3+ -doped As 2 S 3 and Ge 33 As 12 Se 55 chalcogenide glasses are presented and discussed. Bulk samples and thin films have been studied. Bulk samples have been obtained by melt-quenching. Thin films have been obtained by RF sputtering. Sputtering targets have been fabricated from home-made cut and polished doped bulk samples and from commercial undoped targets with erbium pieces on the surface. The film morphology has been analysed by AFM and a column-like structure has been observed for the Ge 33 As 12 Se 55 films. The presence of Er 3+ ions in As 2 S 3 and Ge 33 As 12 Se 55 films has been confirmed by PL emission at 1.55 μm. A PL lifetime of 4 ms has been measured in Er-doped As 2 S 3 films. Single mode waveguides have been fabricated by wet etching in Ge 33 As 12 Se 55 films.
Databáze: OpenAIRE